公开(公告)号：EP1346163A4

公开(公告)日：2006-01-25

申请号：EP01981965

申请日：2001-11-02

申请人： SELECT DESIGN TECHNOLOGIES LTD

发明人： KLARICIC BORIS

IPC分类号： F16D13/18 ,  F16D21/04 ,  F16D25/0632 ,  F16D25/065 ,  F16D27/11 ,  F16H3/089 ,  F16H3/083

CPC分类号： F16D25/065 ,  F16D13/18 ,  F16D21/04 ,  F16H3/089 ,  F16H2200/0047

摘要： A transmission employs a drum type gear selector having circumferential pads (45) employing driving pad geometry, which allows a pad to be in full contact with the drum. Each pad has its centre of gravity "Cg" on the left side of pivot point (53) so that the pad s centrifugal force "Cf" keeps the pad out of contact with the drum when it rotates in neutral. A spring (54) has one end hooked into a slot (55) of pad (45) and its other end is anchored at point (56), and also resting on the hydraulic spring at Point (S2). The spring (54) arrangement and its shape allow spring (54) to act in two major directions required for proper operation of pad (45). One action is to pull pad (45) about its pivot point (54) to a neutral position (45A) by rotating pad (45) about pivot (53) for distance "H1" moving Point (P1) into Point (P2). At the same time when the pad is pulled to position (45A), the hydraulic spring (49) is rotated about its pivot Point (S1) to position (47A). These two movements place the pad (45) in its rest position with clearance gaps "G1" and "G2" at rear and front of the pad respectively. It has to be noted that centrifugal force "Cf" is a major force, which keeps the pads in a neutral position when gears are in free operating mode.

公开(公告)号：EP1330614A4

公开(公告)日：2006-01-25

申请号：EP01981966

申请日：2001-11-02

申请人： SELECT DESIGN TECHNOLOGIES LTD

发明人： KLARICIC BORIS

IPC分类号： F16H3/08 ,  F16D13/18 ,  F16D13/34 ,  F16D21/04 ,  F16D23/04 ,  F16D25/0632 ,  F16D25/08 ,  F16H3/089

CPC分类号： F16D21/04 ,  F16D13/18 ,  F16D13/34 ,  F16D25/082 ,  F16H3/089 ,  F16H2200/0047 ,  Y10T74/19242 ,  Y10T74/19288 ,  Y10T74/19344 ,  Y10T74/19391 ,  Y10T74/194

摘要： A multi cone selector in a transmission employs sandwiched cone friction surfaces 19A, 20A and 21A and these are shown in free or unengaged state while the corresponding friction surfaces as numerals 19, 20 and 21 are shown as engaged. This comparative illustration shows the relative positions of the surfaces at different times since the "A" surfaces and the non "A" surfaces are the same circumferential surfaces. The cone selector is used to engage free rotating gear a female part 22 of a multi-cone selector. A hydraulic actuator 23 is received by internal gear case wall 24 formed so as to prevent any radial or axial movement of the actuator itself. A hydraulic coupling, in this case the hydraulic coupling is formed as hydraulic springs or bags illustrated at 26. The crown of hydraulic spring outlet piston is formed so as to clip in a housing of a thrust bearing 29. The function of thrust bearing 29 is to provide relative rotational movements between cone clutch male part 30 and a piston of a hydraulic spring whether in idling or power transmitting mode. Twin cone selector comprises male part 30, female part 22 and cones 31 and 32. Cone 31 operates as a driving cone and is constrained but free to slide parallel to the axis of rotation in circular slots 33. Cone 32 operates as a driven cone and is constrained but free to slide parallel to the axis of rotation in circular slots 36.